Image of European tar spot

Description:

Slo: javorjeva katranasta pegavost - Habitat: Mixed forest, in shade, moderately south inclined slope, relatively humid and warm place, cretaceous clastic rock (flysh) bedrock, in shade, partly protected from direct rain by tree canopies, average precipitations ~ 3.000 mm/year, average temperature 8-10 deg C, elevations 510 m (1.700 feet), alpine phytogeographical region. - Substratum: Acer pseudoplatanus rotten leaf on ground (from previous year). - Ref.: (1) ID confirmed by Mgr. Gabriel Seljak , Agricultural and Forestry Service, Nova Gorica, Slovenia. (2) http://www.mycokey.com/MycoKeySolidState/species/Rhytisma_acerinum.html.